I too considered the Syrinx. IMO Incredible speakers. By FAR the best I auditioned keeping in mind the dealers rarely "crank it". If you think they won't play loud without strain you are probably right. They were just not designed for that. I listen very loud at times so I went with the Tyler PD80's (on order). If I decide on a second pair for lower volume listening the Syrinx would, without question, be one of my top choices.
Good luck !!!
Good luck !!!